A tool post is a component of a lathe that holds and secures cutting tools in place during machining operations. It allows for precise adjustments in tool height and angle, ensuring accurate cuts and finishes on the workpiece. Tool posts can be made from various materials, including steel and aluminum, and come in different designs, such as quick-change and fixed types. In addition to holding tools, tool posts often feature a clamping mechanism that allows for easy tool changes. This is particularly useful in production environments where efficiency is crucial. Properly maintaining the tool post is essential for achieving optimal performance and extending the lifespan of both the tool and the lathe.